United Precious Metal Refining

This app offers a wide range of tools and useful information for professionals from the jewelry industry. Easy to use calculators for scrap valuation, karating calculations for casting, and conversions, as well as spot prices for precious metals including Gold, Silver, Platinum & Palladium.
•⁠ ⁠Check live precious metal spot prices.
•⁠ ⁠Frequently used Calculators
-- Estimate value of scrap gold and silver lots based on market price and purity.
-- Raise of lower the purity of gold
-- Ratios for producing sterling silver
-- Convert casting weights for different materials
-- Convert between Fahrenheit and Celsius
-- Convert between different units of weight